hoock



E. H. noocx/ ENVELOP.

APPLICATION FILED SEPT. 13. I918.

Patented May 6, 1919.

5 awe/M02: I H 00 071 Mot/Mu EHIMET'I. H. HOOCK, OF ST. LOUIS, MISSQUBLY nn'vnnor.

Specification of Letters Patent.

' Patented May 6, 1919.

Application filed September 18, 1918. Serial 170. 253,885.

To all whom it may concern Be it known that I, EMMETT H. HOOOK, acitizen of the United States, residing at St. Louis, in the county ofSt. Louis city and State of Missouri, have invented new and usefulImprovements in Envelops, of which the following is a specification.

This invention relates to new and useful improvements in envelops andthe principal object of the invention is to provide means for coveringthe return address so that the name of the sender is concealed fromview.

Another object of the invention is to provide a device of this characterwhich is simple and durable in construction, reliable and eflicient inoperation and one which can be n'ianufactured and placed upon the marketat a minimum cost.

The invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describmg my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a rear view of my improved envelop with the flap closed.

Fig. 2 is a like view with the top and bottom flaps open.

Fig. 3 is a, view showing the bottom flap closed and the upper flapopened.

Fig. 4 shows the envelop closed and with the cover slip removed.

In these views 1' indicates the body of the envelop, 2 the end flaps, 3the bottom flap and 4: the top flap. As shown, the end flaps have theirupper ends square while the free end of the bottom flap is also squareso that when the end flaps and bottom flap are secured together theywill form a straight edge at the opening of the envelop. I prefer tomake the end flaps of the shapes shown with their free ends incliningtoward the bottom of the envelop. The upper flap has a detachable partor slip 5 formed thereon by scoring or perforating the. flap as at 6. Atone end of the slip I form a slot 7. As shown, the slip is ofsubstantially rectangular form. This slip is adapted to contain theinstructions to the post master to tear off the slip when the returnaddress is desired. On the bottom flap I print an outline 8 forreceiving the return address. This outline is immediately under the slipwhen the envelop is closed. I place on the under side of the top flaparound the slip adhesive, as indicated at 9.

It will thus be seen that'the senders ad dress is concealed from viewfrom anyone handling the letter; yet his address can be secured by thepost master by tearing ofi the slip. This arrangementof parts will actas a reminder to the sender to place his return address on the envelop.It will also give plenty of space on the front of the letter foradvertisements or the like.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claim.

What I claim is An envelop having a space on the outer face of thebottom flap for receiving the address of the sender, and adapted becovered by the closing flap and a shp on the closing flap covering thesa d address and formed bv lines of perforations.

In testimony whereof I afiix my s1 ature. EMMETT H. HO OK.

